Republican candidates around the country seized on President Barack Obama's support for the right of Muslims to build a mosque near ground zero, assailing him as an elitist who is insensitive to the families of the Sept. 11 victims. From statehouses to state fairs on Tuesday, Republican incumbents and challengers unleashed an almost unified line of criticism against the president days after he forcefully defended the construction of a $100 million Islamic center two blocks from the site of the 2001 terror attacks. Recalling the emotion of that deadly day, Republicans said that while they respect religious freedom, the president's...